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    Landscapes of polyphase glaciation: eastern Hellas Planitia, Mars

    Brough, S. and Hubbard, B. and Souness, C. and Grindrod, Peter M. and Davis, J. (2016) Landscapes of polyphase glaciation: eastern Hellas Planitia, Mars. Journal of Maps 12 (3), pp. 530-542. ISSN 1744-5647.

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    Abstract

    The mid-latitudes of Mars host numerous ice-related landforms that bear many similarities to terrestrial ice masses. This collection of landforms, termed viscous flow features (VFFs), is composed primarily of H2O ice and shows evidence of viscous deformation. Recent work has hypothesised that VFFs are the diminishing remains of once larger ice masses, formed during one or more previous ice ages, and the landscape therefore records evidence of polyphase glaciation. However, debate persists concerning the former extent and volume of ice, and style of former glaciations. The accompanying map (1:100,000 scale) presents a geomorphic and structural assessment of a glacial landscape in eastern Hellas Planitia, Mars. Here, we present a description of the features identified, comprising four geomorphic units (plains, lobate debris apron, degraded glacial material, and glacier-like form) and 16 structures (craters, moraine-like ridges, flow unit boundaries, arcuate transvers structures, longitudinal surface structures, ring-mold craters, terraces, medial moraine-like ridges, raised textured areas, flow-parallel and flow-transverse lineations, crevasses and crevasse traces, and ridge clusters).

    Metadata

    Item Type: Article
    Additional Information: This is an Accepted Manuscript of an article published by Taylor & Francis, available online: http://wwww.tandfonline.com/10.1080/17445647.2015.1047907
    Keyword(s) / Subject(s): Mars, ice, glaciation, lobate debris apron, glacier-like form, mid-latitude, climate change
    School: Birkbeck Schools and Departments > School of Science > Earth and Planetary Sciences
    Depositing User: Administrator
    Date Deposited: 03 Aug 2015 11:10
    Last Modified: 16 Jun 2016 10:41
    URI: http://eprints.bbk.ac.uk/id/eprint/12645

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